[RFC PATCH v2 14/14] perf stat: Extend PMU metrics value linter to validate --new outputs

[Ian Rogers]

This patch updates tools/perf/tests/shell/stat_metrics_values.sh to run
the metrics value validation linter twice: once for the legacy path,
and once under the --new print flag using the newly introduced python
validator `-new` argument:

  $PYTHON $pythonvalidator -rule $rulefile -output_dir $tmpdir ... -new

This mathematically guarantees that calculated Intel PMU metric values
staged inside the decoupled streaming JSON callbacks are parsed and
validated cleanly against the formal rules engine.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
Assisted-by: Antigravity:gemini-3.5-flash
---
 tools/perf/tests/shell/stat_metrics_values.sh | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/stat_metrics_values.sh b/tools/perf/tests/shell/stat_metrics_values.sh
index 30566f0b5427..02c0bcf6e078 100755
--- a/tools/perf/tests/shell/stat_metrics_values.sh
+++ b/tools/perf/tests/shell/stat_metrics_values.sh
@@ -22,9 +22,20 @@ for cputype in /sys/bus/event_source/devices/cpu_*; do
 	$PYTHON $pythonvalidator -rule $rulefile -output_dir $tmpdir -wl "${workload}" \
 		-cputype "${cputype}"
 	ret=$?
-	rm -rf $tmpdir
 	if [ $ret -ne 0 ]; then
 		echo "Metric validation return with errors. Please check metrics reported with errors."
+		rm -rf $tmpdir
+		exit $ret
+	fi
+
+	echo "Testing metrics for: $cputype (New API)"
+	$PYTHON $pythonvalidator -rule $rulefile -output_dir $tmpdir -wl "${workload}" \
+		-cputype "${cputype}" -new
+	ret=$?
+	rm -rf $tmpdir
+	if [ $ret -ne 0 ]; then
+		echo "Metric validation return with errors (New API). Please check metrics reported with errors."
+		exit $ret
 	fi
 done
 exit $ret
-- 
2.54.0.794.g4f17f83d09-goog